HELP NOW PLS ANSWER TEST QUESTION

What is the smallest integer n such that n\sqrt{2} is greater than 20

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Acylinder with a base diameter of x units has a volume of jxcubic units which statements about the cylinder are true? check all that apply. the radius of the cylinder is 2 x units. the radius of the cylinder is 2x units. the area of the cylinder's base is 200 square units. the area of the cylinder's base is a square units. the height of the cylinder is 2x units. the height of the cylinder is 4x units. mark this and return save and exit next submit